专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160050735A1 DIMMING SYSTEM AND OPERATING METHOD THEREOF 有权
标题翻译：调试系统及其操作方法
公开(公告)号：US20160050735A1
公开(公告)日：2016-02-18
申请号：US14532690
申请日：2014-11-04
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Ching-Ran Lee , Wen-Tien Tsai , Tzu-Hung Yang
IPC分类号： H05B37/02
CPC分类号： H05B33/0851 , H05B33/0815 , Y02B20/346 , Y02B20/42 , Y02B20/46
摘要： A dimming system comprises a controller and an AC-to-DC converter. The controller outputs a control signal in response to a dimming signal. The controller comprises a frequency adjustment circuit and a duty cycle adjustment circuit. The frequency adjustment circuit adjusts the frequency of the control signal in response to the dimming signal. The duty cycle adjustment circuit adjusts the duty cycle of the control signal in response to the dimming signal. The AC-to-DC converter converts an external power and to output a DC signal in response to the control signal so as to drive a light source by the DC signal. When the controller is operated at a first mode, the control signal has a first frequency and a first duty cycle. When the controller switches to a second mode, the control signal has a second frequency and a second duty cycle.
摘要翻译：调光系统包括控制器和AC-DC转换器。控制器响应于调光信号输出控制信号。控制器包括频率调节电路和占空比调节电路。频率调节电路响应于调光信号调节控制信号的频率。占空比调整电路根据调光信号调节控制信号的占空比。 AC-DC转换器转换外部电力并响应于控制信号输出DC信号，以便通过DC信号驱动光源。当控制器在第一模式下操作时，控制信号具有第一频率和第一占空比。当控制器切换到第二模式时，控制信号具有第二频率和第二占空比。

2. 发明授权

US09257904B2 Direct current conversion circuit 有权
标题翻译：直流转换电路
公开(公告)号：US09257904B2
公开(公告)日：2016-02-09
申请号：US13937685
申请日：2013-07-09
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Wen-Tien Tsai , Ching-Ran Lee , Po-Yen Chen , Ching-Tsai Pan
IPC分类号： G05F1/00 , G05F1/40 , H02M3/335 , H02M3/155 , H02M1/00
CPC分类号： H02M3/155 , H02M2001/0058 , Y02B70/1491
摘要： A direct current (DC) conversion circuit suitable for driving a load comprises a buck-boost converter, a resonant stage circuit and an output stage circuit. The buck-boost converter has two input ends receiving a first DC signal, and two output ends outputting a second DC signal. The resonant stage circuit has two input ends receiving the second DC signal. The resonant stage circuit converts the second DC signal to energy and further converts the energy to a negative voltage by a resonance effect. The resonant stage circuit has two input ends outputting the energy. The output stage circuit has two input ends receiving the energy to store the energy, and two output ends outputting energy to the load.
摘要翻译：适用于驱动负载的直流（DC）转换电路包括降压 - 升压转换器，谐振级电路和输出级电路。降压 - 升压转换器具有两个输入端接收第一直流信号，两个输出端输出第二直流信号。谐振级电路具有接收第二DC信号的两个输入端。谐振级电路将第二DC信号转换成能量，并通过共振效应将能量进一步转换为负电压。谐振级电路具有输出能量的两个输入端。输出级电路具有两个接收能量以存储能量的输入端，两个输出端向负载输出能量。

3. 发明申请

US20140139128A1 DIRECT CURRENT CONVERSION CIRCUIT 有权
标题翻译：直流电流转换电路
公开(公告)号：US20140139128A1
公开(公告)日：2014-05-22
申请号：US13937685
申请日：2013-07-09
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Wen-Tien Tsai , Ching-Ran Lee , Po-Yen Chen , Ching-Tsai Pan
IPC分类号： H05B33/08
CPC分类号： H02M3/155 , H02M2001/0058 , Y02B70/1491
摘要： A direct current (DC) conversion circuit suitable for driving a load comprises a buck-boost converter, a resonant stage circuit and an output stage circuit. The buck-boost converter has two input ends receiving a first DC signal, and two output ends outputting a second DC signal. The resonant stage circuit has two input ends receiving the second DC signal. The resonant stage circuit converts the second DC signal to energy and further converts the energy to a negative voltage by a resonance effect. The resonant stage circuit has two input ends outputting the energy. The output stage circuit has two input ends receiving the energy to store the energy, and two output ends outputting energy to the load.
摘要翻译：适用于驱动负载的直流（DC）转换电路包括降压 - 升压转换器，谐振级电路和输出级电路。降压 - 升压转换器具有两个输入端接收第一直流信号，两个输出端输出第二直流信号。谐振级电路具有接收第二DC信号的两个输入端。谐振级电路将第二DC信号转换成能量，并通过共振效应将能量进一步转换为负电压。谐振级电路具有输出能量的两个输入端。输出级电路具有两个接收能量以存储能量的输入端，两个输出端向负载输出能量。

4. 发明授权

US11632840B2 LED driving circuit and method 有权
公开(公告)号：US11632840B2
公开(公告)日：2023-04-18
申请号：US17230557
申请日：2021-04-14
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Wen-Tien Tsai , Yu-Jen Chen
IPC分类号： H05B45/30 , H05B45/3725 , H02M7/219 , H02M7/04
摘要： An the LED driving circuit, for driving an the LED load, includes: a bridge rectifier for rectifying an AC input voltage into a DC voltage; a serial capacitor voltage divider coupled to the bridge rectifier, including a plurality of serial capacitors; a half-bridge switch, coupled to the serial capacitor voltage divider; and a controller coupled to the half-bridge switch, for determining whether the DC voltage is higher than a threshold value and for controlling the half-bridge switch in a full-voltage mode or a half-voltage mode. In the full-voltage mode, the plurality of serial capacitors of the serial capacitor voltage divider synchronously supply power to the LED load. In the half-voltage mode, the plurality of serial capacitors of the serial capacitor voltage divider alternatively supply power to the LED load.

5. 发明授权

US09190904B2 DC conversion circuit 有权
标题翻译：直流转换电路
公开(公告)号：US09190904B2
公开(公告)日：2015-11-17
申请号：US13941271
申请日：2013-07-12
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Wen-Tien Tsai , Ching-Ran Lee , Po-Yen Chen , Ching-Tsai Pan
IPC分类号： G05F1/00 , H02M3/155 , H02M1/00
CPC分类号： H02M3/155 , H02M2001/0058 , Y02B70/1491
摘要： A DC conversion circuit in the disclosure includes a buck-boost converter and a resonant stage circuit. The buck-boost converter has two input ends, a negative output end and a positive output end. The buck-boost converter receives a first DC signal via its two input ends, and outputs a second DC signal via its two output ends. The resonant stage circuit has two input ends and two output ends. The resonant stage circuit receives the second DC signal via its two input ends, converts the second DC signal into energy for power charging, and outputs the energy to a load via its two output ends. Then, the resonant stage circuit converts the energy, which is used for power charging, to form a negative voltage by a resonance effect, and outputs the energy to the load via its two output ends.
摘要翻译：本公开中的直流转换电路包括降压 - 升压转换器和谐振级电路。降压 - 升压转换器有两个输入端，一个负输出端和一个正输出端。降压 - 升压转换器经由其两个输入端接收第一DC信号，并且经由其两个输出端输出第二DC信号。谐振级电路具有两个输入端和两个输出端。谐振级电路通过其两个输入端接收第二直流信号，将第二直流信号转换为用于充电的能量，并通过其两个输出端将能量输出到负载。然后，谐振级电路将用于充电的能量转换成通过谐振效应形成负电压，并通过其两个输出端将能量输出到负载。

6. 发明授权

US10986715B1 LED driving circuit and method 有权
公开(公告)号：US10986715B1
公开(公告)日：2021-04-20
申请号：US16702028
申请日：2019-12-03
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Ching-Ran Lee , Chi-Chun Huang , Che-Min Kung , Wen-Tien Tsai , Yu-Jen Chen
IPC分类号： H05B45/37 , H05B45/395 , H05B45/20 , H05B45/48 , H05B45/00
摘要： In driving a segmented LED loading, an alternating current (AC) voltage is rectified into a direct current (DC) voltage; the DC voltage is regulated into an input voltage and the input voltage is maintained higher than a lowest voltage used for lighting at least one LED segment of the segmented LED loading; the input voltage and a current flowing through the segmented LED loading is detected to generate a switch control signal and a current control signal; respective operation states of each of a plurality of switches of a LED segment switch module are controlled by the switch control signal to control each LED segment of the segmented LED loading as power-supply state or no-power-supply state; and the current of the segmented LED loading is regulated based on the current control signal.

7. 发明授权

US09549444B2 Dimming system and operating method thereof 有权
标题翻译：调光系统及其操作方法
公开(公告)号：US09549444B2
公开(公告)日：2017-01-17
申请号：US14532690
申请日：2014-11-04
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Ching-Ran Lee , Wen-Tien Tsai , Tzu-Hung Yang
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0851 , H05B33/0815 , Y02B20/346 , Y02B20/42 , Y02B20/46
摘要： A dimming system comprises a controller and an AC-to-DC converter. The controller outputs a control signal in response to a dimming signal. The controller comprises a frequency adjustment circuit and a duty cycle adjustment circuit. The frequency adjustment circuit adjusts the frequency of the control signal in response to the dimming signal. The duty cycle adjustment circuit adjusts the duty cycle of the control signal in response to the dimming signal. The AC-to-DC converter converts an external power and to output a DC signal in response to the control signal so as to drive a light source by the DC signal. When the controller is operated at a first mode, the control signal has a first frequency and a first duty cycle. When the controller switches to a second mode, the control signal has a second frequency and a second duty cycle.
摘要翻译：调光系统包括控制器和AC-DC转换器。控制器响应于调光信号输出控制信号。控制器包括频率调节电路和占空比调节电路。频率调节电路响应于调光信号调节控制信号的频率。占空比调整电路根据调光信号调节控制信号的占空比。 AC-DC转换器转换外部电力并响应于控制信号输出DC信号，以便通过DC信号驱动光源。当控制器在第一模式下操作时，控制信号具有第一频率和第一占空比。当控制器切换到第二模式时，控制信号具有第二频率和第二占空比。

8. 发明授权

US09343956B2 Passive power factor correction circuit, electronic device applying the same and operation methods thereof 有权
标题翻译：无源功率因数校正电路，应用其的电子装置及其操作方法
公开(公告)号：US09343956B2
公开(公告)日：2016-05-17
申请号：US13846433
申请日：2013-03-18
申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
发明人： Wen-Tien Tsai , Ching-Ran Lee , Po-Yen Chen , Ching-Tsai Pan
IPC分类号： G05F1/70 , H02M1/42
CPC分类号： H02M1/4266 , Y02B70/123
摘要： A passive power factor correction circuit includes: a DC capacitor and an input capacitor, coupled to a rectifying circuit and charged by a DC voltage from the rectifying circuit; an output capacitor, coupled to a load; first diode and a second diode, coupled to the input capacitor and the output capacitor; and an inductor, coupled to the load, the input capacitor and the output capacitor. Charging into and discharging from the DC capacitor are completed within a half cycle of an input AC voltage.
摘要翻译：无源功率因数校正电路包括：直流电容器和输入电容器，耦合到整流电路并由整流电路的直流电压充电; 耦合到负载的输出电容器; 第一二极管和第二二极管，耦合到输入电容器和输出电容器; 以及耦合到负载的电感器，输入电容器和输出电容器。在直流电容器的充电和放电完成在输入交流电压的一半周期内。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式